Surgical Pathology Criteria

Nodular Mucinosis of the Breast

Supplemental Studies

Immunohistology

Keratin Negative
EMA Negative
S100 Variable
Smooth muscle actin Variable
Synaptophysin Negative
Chromogranin Negative
MIB1 <1%

Histochemical stains

Myxoid tissue staining:

Alcian Blue

Positive

Hale Colloidal Iron

Positive

Mucicarmine

Faint

PAS

Negative

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